Home / 21,479.49-32,228.80-8,332.88

Finding the Fourth Proportional to 21,479.49, 32,228.80 and 8,332.88

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Solution

The fourth proportional to 21,479.49, 32,228.80 and 8,332.88 is: 12,503.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,479.49 : 32,228.80 = 8,332.88 : x
  2. Step 2: Convert to fraction form
    21,479.49/32,228.80 = 8,332.88/x
  3. Step 3: Cross multiply
    21,479.49x = 32,228.80 × 8,332.88
  4. Step 4: Simplify right side
    21,479.49x = 268,558,782.68
  5. Step 5: Solve for x
    x = 268,558,782.68/21,479.49
  6. Step 6: Final answer
    x = 12,503.03

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.